Uncertain
Uncertain (un*sẽr"tin) , adjective
[Prefix un- not + certain. Compare Incertain.]
1.
Not certain; not having certain knowledge; not assured in mind; distrustful. — Chaucer
Man, without the protection of a superior Being,... is uncertain of everything that he hopes for.
2.
Irresolute; inconsonant; variable; untrustworthy; as, an uncertain person; an uncertain breeze.
O woman! in our hours of ease,
Uncertain, coy, and hard to please!
3.
Questionable; equivocal; indefinite; problematical.
The fashion of uncertain evils.
From certain dangers to uncertain praise.
4.
Not sure; liable to fall or err; fallible.
Soon bent his bow, uncertain in his aim.
Whistling slings dismissed the uncertain stone.
Uncertain , transitive verb
[1st pref. un- + certain; or from uncertain, a.]
To make uncertain. [Obsolete] — Sir W. Raleigh